Road machine



Oct. 18, 1932.

ROAD MACHINE Original Filed July'1'8, 1924 2 Sheets-Sheet INVENTOR AWMMA/ GROA/fl/IA/G BY A00- N/V/IVG ATTORNEY Ra r P N Po mm hb Nb uh \\\\\b .6 MJ 0 m o d n in. v 0J1: ll! iI IMM W Q Qw m A Q MN Oct. 18, 1932. RONNING ET AL 1,883,403

ROAD MACHINE Original Filed July 18, 1924 2 Sheets-Sheet 2 Qll Hll I INVENTOR ANDRZAN 6. Row/we ATTORNEY chinery, and the Patented Oct. 18, 1932 anonrn nouiwmo, or numerous, AND ANDBEAN mmnmroms, on, BY nnonrn;

, G. RONNING, DECEASED, LATE 01' BONNING AND JACOB A. BONNING, an

nouroaa'or unmmroms .uzn sr. mun, unmnsorn norm Original application filed July 18, 1824, Serial No. 728,662. Divided and this application filed January 81,

1928. Serial II 0. 250,884.

This invention relates to road grading maprimary' object is to provide a road working machine having a grader blade, with manually controlled, selectably actuable, tically and angularly -adjustingthe operating position of the blade as the machine travels over the road. Another object is to provide manually controlled power operated means for steering. the machine. Further and more specific objects will be disclosed in the course of the following specification, ref

- erence being had to the accompanying drawas seen from the right traction wheel broken ings, wherein:

Fig. 1 is a side elevation of the machine, and with the near away for purpose of illustration. Fig.2 is a plan view of the machine as so shown in Fig. 1, but with garious parts broken away. Fig. 3 is an enlarged sectional detail view on theirregular line 3 3 in Fig. 2.

Flg. 4 is an enlarged sectionalelevation on the line 4-4 in Fig. 2.

Fig. 5 is a sectional elevation on the line 5 .5 in Fig. 2. k

This application is a divison of a co-pending application, Ser. N 0. 726,662, filed July 18, 1924.- now Patent No. 1,660,050, issued February 21, 1928, forroad grader.

Referring to the drawings more particularly and by reference characters, A designates ajtractor unit of a conventional type, from which the usual or normal forecarriage has be'enremoved, and which is maintained in its normal horizontal position by a frame B that extends rearwardly from the tractor. The frame B, at an intermediate position rests upon and is secured to the rear axle housing of the tractor, and, at its front end the frame is provided with a yoke C that ex; tends under and supports the frdnt end of the tractor, from whence the forecarriage has been removed. At its rear end the frame 3 carries a large worm gear 6, that is pivoted as at 7 to and is carried on a yoke 8', which in turn embraces a drum or road roller 9..' The drum 9 is angled, to steer themachine, by a worm 10 that meshes with and and power operated means for V8r- '=machine I task.

operatesthe gear 6. The worm 10 is mounted on a'shaft 11, journaled in a bearing 12, at its rear end, while its forward end is carried in a bearing 13 of a. bell crank yoke 14 pivoted to a bracket. 15 on the frame B. At

that the motion of the shaft 19 will be im- .6

parted to the worm gear 6 until the steering member 9 is angled, in either direction, as desired, and thus the machine may be steered as may be found necessary. The'shaft 19. is continuously rotated, from the tractor 7 engine, through the medium of a worm gear 20, a worm 21, and a shaft 22 that is driven by the power shaft 23 of the motor through bevel pinions 24.

The machine is controls, so that the entire machine can be operated by an operator at either station, or, r

if so desired, one operator may operate the tractor. and steering controis, while the other so operator tends to the implement controls.

A steering column 27 and hand wheel 28' is provided for the rear operator, and the column is provided with a short arm 29 that is connected by a control rod 30 to the bell s5 or 33 is slightly rotated to right or left, the

power will be utilized in steering the to the right or left, thus relieving the operator of this effort and labor withwhich heis otherwise burdened as a filanual tractor The construction and operating connections of the grader, which is suspended under the frame B and rearwardly of the tractor unit, will now bedscribed.

A grader frame proper comprises a adapted to frictionally a continuously ro- .91 pressure is applied I provided with two opera-' 75 I tors stations, 25 and 26, and a double set of 7 pair of rearwardly diverging angle iron draw bars 34, connected at their front ends by a casting 35, which is pivotally secured, as at 36, to the main tractor unit. The rear ends of the draw bars are connected by a transverse beam 37. Secured under the frame, and rotatably adjustable with respect thereto, is a circular supporting member 38, known as a circle, towhich is secured, by bil'ackets 39 and braces 40, the scraper blade 4 The ends of the beanr37 are suspended by lin s 42 and 43 from the arms 44 and 45, at the rear ends of shafts 46 and 47, respectively. These shafts are suitably journaled in brackets 48, carried on the frame B, and are provided, at their forward ends, with worm gears 49 that mesh with worms .50. These worms are carried on vertical shafts 51 and 52. The lower end of the shaft 51 (see Figs. 3 and 4) has awheel 53 that operates between the disks 17 and 18, similarly to wheel 16, and the shaft 52 has a corresponding-wheel 54 that operatesbetween a pair of disks 55 and 56 at the other end of the shaft 19. Thus, when either of the wheels 53 or 54 is brought into frictional contactwith one of the discs 17, 18, 55 or 56, it will be seen that one end I to the operators or the other of the grader blade will be either raised or lowered. As long as the wheels or rollers 53 and 54 are left in idle or neutral positions between the discs, the position of the grader blade will remain fixed, as it is set, because theworm gear connections 49-50 will effectively lock the blade against any adjusting tendency that its weight or road conditions might exert.

The roller 53 is moved into engagement witheither of its friction discs, by a bell crank member 57, which, in turn is actuated by a link 58 and an arm 59. of a'sleeve 60 which is journaled to the frame B. The sleeve is also provided with arms 61 and 62, the first of which is connected by a rod 63 to a rear (left) foot pedal 64, while the latter is connected by a rod 65 to a front (left) foot pedal 66.

Rotatably secured in the sleeve 60, and also journaled to the frame B, is a shaft 67, having three crank arms 68, 69 and 7 O. The crank arm 68 is connected by a link rod 71 to a front (right) foot pedal 72, the arm 69 is connected by a link rod 73 to a rear (right) foot pedal 74, and the arm is connected by a link 7 5 to a bell crank lever 76, which controls the position of the friction roller'54 between the discs 55 and 56. It will thus be seen that either operator will be able to control the vertical position of either end of the grader blade by .foot manipulation, and by a mechanism that is very sensitive adjustments, yet also subject to the fast and powerful action of the tractor engine.

. The entire scraper frame may also be raised and lowered without changing the working angle of the blade 41, by clutch hand levers 77 and 78, which, by means of respective clutch locks 7 9 and 80, lock the pedals together, for simultaneous movements. These clutches are both shown as out of active engagement. When engaged, however, it will be seen that a movement of either pedal will impart a like movement to the other pedal, and consequently the entire blade will be raised and lowered without altering its working angle.

It is understood that suitable modifications may be made in the general design and structural details of the invention as herein shown, provided, however, that said modifications come within the spirit and scope of the appended. claims. The invention having just been fully disclosed and described, what is claimed is: r

1. The combination with a grading machine having a grading implement, of a pair of power operated devices for vertically and selectively adjusting the sides of the implement, controls for respectively regulating said devices, and means .for optionally locking said controls together whereby both sides of the implement may be simultaneously adjusted.

. frame carried in part by and extending longitudinally from the tractor unit, a grader implement arranged under theaframe, an operators station on the machine, and traction engine operated-devices, having controls extending to within reach of the operator at. said station, for adjusting the operative angular position of the grader implement and for raising and lowering the implement without disturbing the angularly adjusted position;to which it may have been previously adjusted.

. 4.. In amachine of the character described, the.combination including a tractor unit, a frame secured at one end to and extending longitudinally from the tractor unit, a grader implement arranged under the fraiifejan operators station on the machine, and mechanisms adapted to be driven by the engine of the tractor, and having controls extending to within reach of an operator at said station, for steering the machine, for adjusting the operative angle of the implement, and for disturbing the angular posltion thereof.

adjusting nections, including manually controlled fric 5. A power grader comprising a suitably supported frame, an engine for propelling the same, a road working tool suspended under the frame, a pair of cranks carried by the frame and having link connections with the .tool for vertically and angularly adjusting the same, self-locking worm gear devices'for the cranks, and power take off contion operated devices, for transmitting power from the engine to the worm gear devices.

6. A power grader comprising a suitably supported frame, an engine for propelling the same, a road working tool suspended under the frame, a pair of cranks carried by the frame and having link connections with the tool for selectively or simultaneously adjusting the respective ends thereof, and manually controlled power transmitting 'means connecting said cranks with the engine.

7. A' power grader comprising a suitably supported'frame, an engine for propelling the same, a road working tool suspended under the frame, a pair of cranks carried by the frame and having link connections with the tool for adjusting the respective'ends thereof, and manually controlled power transmit ting means for selectively applying power from the engine to either or both of said cranks.

8. A tool adjusting mechanism for a road machine having a motor, compris'ingdevices at the sides of the machine for raising and lowering the ends of the tool, said devices each including a worm and worm gear driven thereby, andreversible power transmitting connections for respectively transmitting power from the motor to either or both of said worms selectively.

, 9. A tool adjusting mechanism for a road machine having a motor, comprising devices at the sides of the machine for raising and lowering the respective ends of the tool, said devices each including a worm and worm gear driven thereby, and means for selectively transmitting power, from the motor to either of said worms, including a pair of manually controlled power transmitting devices.

10. A tool adjusting mechanism for a road machine having a motor, comprising devices at the sides of the machine for raising and lowering the respective ends of the tool, said devices each including a wormand worm gear driven thereby, shafts carrying the worms at respective ends thereof, and separate selectively operable members at the other ends of said shafts for controlling the transmission of power thereto from the motor.

11. A tool adjusting mechanism for a road machine having a motor, comprising devices at the sides of the machine for raising and lowering the ends of the tool, said devices each including driven thereby, respective ends thereof, and friction devices at the other ends of said shafts for controlling the transmission of power thereto from the motor, and means for selectively or simultaneously operating said friction devices. Y a

12. A power grader comprising a main frame having a motor for propelling the same, a grader frame disposed under the mainframe, a power shaft journaled transversely in the main frame and connected with the motor'whereby it may be continuously driven thereby, two pair "of driving friction members carried by the shaft, a pair of driven friction members disposed one between each pair of driving friction members for selective contact therewith, andlateral- 1y disposed grader frame adjusting devices operatively connected to said .drivenfriction members. v

13. A power grader comprising a main frame having a'motor for propelling the same, a grader frame disposed under the main a worm and worm gear. shafts carrying the worms at frame, a power shaft journaled transversely in the main frame and connected with the motorwhereby it ma be continuously driven thereby, two pair 0 driving friction members carried. by the shaft, a pair of driven friction members disposed one between; each pair of driving friction members for selective contact therewith, a pair of ad'usting mechanisms connecting said driven rictionmembers with the grader-frame, and means for manually engaging therespectivedriven friction members with the driving members to effect adjustments to the grader frame through said adjusting mechanisms.

14. A power grader comprising a main frame having a "motor for propelling the same, a grader frame disposed under the main frame, a power shaft journaled transversely in-the mainframe and connected with the motor whereby it may bexcontinuously driven thereby, two pair of driving friction members carried by the shaft, a pair of driven friction members disposed one between each pair of driving friction members for selective'contact therewith, a'pair of adjusting mechanisms connecting said driven friction members with the grader frame, manual controls,for the driven friction members, and

means for optionally locking said controls,

with respect to each other, to simultaneouslyopenate both of the adjusting mechanisms.

15. A road working machine havinga suitably supported frame, an engine carried by the frame, a grader blade carfied by the frame, a mechanism connected to the engine, so as to be driven thereby, for angularly adjusting the blade, said mechanism including manually controlled means for raising and lowering the blade without disturbing the angularly adjusted position to which it may have been previously adjusted.

16. A road grading machine comprising a frame, an engine and grader blade carr ed by the frame, a pair of connections between the frame and the blade for vertically adjusting the opposite ends of the latter, a. power member connected to the engine so that 1t may be continuously actuated thereby, whether the machine is travelling or not, means for selectively engaging the power member with either of said connections whereby to effect a predetermined angular adjustment to the blade, and means for subsequently engaging the power member to both of said connections whereby both ends of the blade will be simultaneously adjusted so as to maintain said predetermined angular adjustment when the entire blade is vertically adjusted.

17. In a road grader, a wheeled maln frame, a scraper blade, links connecting the scraperblade with the main frame, adjusting mechanism connected tothe links for operably disposing and angularly adjusting the scraper blade with respect to a road surface, a continuously moving power driven shaft adapted for operatingsaid adjustment independent of movement of the grader, connections from 'said shaft to the adjusting mechanism, and mechanism for selectively disengaging or engaging said connections.

18. A tool adjusting mechanism for a road machine having a motor, comprising devices *at the sides of the machine for raising and lowering the ends of the tool, said devices each including a worm and worm gear power transmitter, and reversable power transmitting connections for respectively transmit- 0 ting power from the motor to' either or both of said transmitters selectively.

19. A tool adjusting mechanism for a road machine having a motor, comprising devices at the sides of the machine forraising and lowering the respective ends of the tool, said v devices each including a worm and worm "gear power transmitter, and means for selectively transmitting power, from the motor to either of said transmitters, including a pair of manually cbntrolled power transmitting devices. y Intestimony whereof, we aflix our signatures, at Minneapolis, Minnesota, this 28 day of January, 1928.

. ADOLPH RONNING) ADOLPH 'RONNING, JACOB A. RONNINGr, Executor-s of the Last Will and Testament of Andrean G. Banning, Deceased, ,a Joint I n- 'ventm'. 

